Home / 66,049,672.05-99,074,508.08-40,221,639.45

Finding the Fourth Proportional to 66,049,672.05, 99,074,508.08 and 40,221,639.45

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Solution

The fourth proportional to 66,049,672.05, 99,074,508.08 and 40,221,639.45 is: 60,332,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,049,672.05 : 99,074,508.08 = 40,221,639.45 : x
  2. Step 2: Convert to fraction form
    66,049,672.05/99,074,508.08 = 40,221,639.45/x
  3. Step 3: Cross multiply
    66,049,672.05x = 99,074,508.08 × 40,221,639.45
  4. Step 4: Simplify right side
    66,049,672.05x = 3,984,939,142,478,764
  5. Step 5: Solve for x
    x = 3,984,939,142,478,764/66,049,672.05
  6. Step 6: Final answer
    x = 60,332,459.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.